Facebook post by University of Helsinki

University education doesn't necessarily require entrance examinations or scheduling. Open online courses, lectures and courses are within the reach of everyone. They are designed and implemented by researchers and university lecturers so they really are university-level courses. A perfect example of open online courses is Elements of AI, a general course on artificial intelligence. By December 2018, over 7,500 people had taken the course.
Artificial intelligence and climate change among the topics examined in free online courses | University of Helsinki helsinki.fi

Even those not pursuing an entire degree can compete studies at the University. Open online courses are available to supplement one’s skills or try out a new field.